similar to: HTB root rate allowing to much of a burst

Please see below Jon Flechsenhaar Boeing WNW Team Network Services (714)-762-1231 202-E7 -----Original Message----- From: Flechsenhaar, Jon J Sent: Wednesday, September 27, 2006 9:35 AM To: lartc@mailman.ds9a.nl Subject: [LARTC] 2.6.14 - HTB/SFQ QoS broken? Jody: I don''t know if you answer basic HTB questions but I''l try anyway. I''m implementing AF and EF with a

All: I am tasked with creating an environment in which DiffServ and IP precedence is handled as close to RFC specification as possible. I have a few problems with implementing this based on current queueing structure. Here are a few of my questions. 1.) Is there any way to get DiffServ AF drop levels without using DSMARK and GRED? Ex. AF11 Gred DP 1 AF12 Gred DP 2 AF13 Gred DP 3 2.)

ALL: <<diffserv-gred_10-06>> I have attached the current script that I am using. $TC qdisc add dev $EDEV parent 2:20 gred setup DPs 3 default 2 grio $TC qdisc change dev $EDEV parent 2:20 gred DP 1 limit $lim min $minTh max $maxTh avpkt $avgPL burst $bursty bandwidth $netBand probability 0.02 prio 2 $TC qdisc change dev $EDEV parent 2:20 gred DP 2 limit $lim min $minTh max

Is there anyway to actually see packet stats or that packets are for sure going into a prio queue with TC? I can see all the HTB stats but the prio classes just list as being there...would like more information Basically I have the following setup DSMARK | HTB - (tcindex filter on TOS) | Prio (u32 filter on TOS) Thanks Jon Flechsenhaar Boeing WNW Team Network Services

All: Does anyone know what the burst and cburst parameter do? My understanding so far: * I see a lot of different definitions on the web. It seems like burst is the number of bytes sent before serving other queues/classes. So if burst was 1000 bytes and class rate was 100kibit per second. It would send 1000 bytes each time the scheduler service that queue to a rate of 100 kbit per

I can use DSMARK to mark on the Egress side. Is there a way to mark/change the DSCP value of an incoming packet on the ingress side? Thanks. Jon Flechsenhaar Boeing WNW Team Network Services (714)-762-1231 202-E7

All: I have been told that HTB_HYSTERESIS might have some effect on rate calculations. This file is usually in /usr/src/linux/net/sched/sch_htb.c. If I change this file I have to re-compile. I am not quite sure how to do this. Can someone list the steps necessary to re-compile or point me to a doc that explains how to do so. Thanks. Jon Flechsenhaar Boeing WNW Team Network Services

I want to limit pps (packets per second) not just bandwidth on the ingress side. I can do this using IP tables but I''m curious if there is a way to do this with TC. Thanks. Jon Flechsenhaar Boeing WNW Team Network Services (714)-762-1231 202-E7

I''m using KOM_RSVP I''m trying to figure out what trigures and RSVP session. When I send traffic with a certain utility the RSVP PATH, RESV, and CONF message is sent. How does the Deameon know to setup a connection though? There is something internal at the client source happening. I just haven''t figured it out yet. Is it listening to a certain port? Any help would

Does anyone on hear have any thoughts on the changes that would be nessary for KOM RSVP to use HTB rather than just CBQ and HFSC? Jon Flechsenhaar Boeing WNW Team Network Services (714)-762-1231 202-E7

All: I''m trying to get RSVP running on a Linux machine. The machine is currently Fedora. I have read rfc 2205. Does anyone know where I can get the RSVP source code to install on the machine. Or does anyone know of some documentation that might help in doing this? Thanks, Jon Flechsenhaar Boeing WNW Team Network Services (714)-762-1231 202-E7

You guys have expressed interest in CCNA training. What would be better for you guys. On-site training after work hours or during the wkend? The other option is after hours or wkend at a near by college. Jon Flechsenhaar Boeing WNW Team Network Services (714)-762-1231 202-E7

Hi, I am trying to get assured forwarding/expedited forwarding with gred and htb working. Below is the script I am using. The following steps are what I thing is how the script works. My problem is that if I remove the HTB qdisc from the script and have the GREDS parent as the dsmark it works, but when I add the htb as a parent of GRED and DSmark the parent of htb it does not work? Any

I''m successfully using HTB + GRED to shape traffic based on the DSCP field. I would like to strip the DSCP and possibly replace it with normal ToS bits on egress traffic leaving my network. Leaving DSCP set is pointless, and could potentially cause problems with some ISPs that use DSCP internally I suppose. Setting ToS bits would seem ideal as most networks still honor it to varying

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi, Is there any grapical interface for the QoS (Quality of Service) Traffic Control in Linux ? Greetings. - --- Carles Xavier Munyoz Baldó carles@descom.es Descom Consulting Telf: +34 965861024 Fax: +34 965861024 http://www.descom.es/ - --- -----BEGIN PGP SIGNATURE----- Version: PGP 6.5.8

Hello all, Please could someone help me with this, I have been trying for days to get this to work. I would like to have BE, AF & EF classes with HTB qdisc. I can''t find any scripts online where this has been done. If I enable this filter: #tc filter add dev eth0 parent 2:0 protocol ip prio 1 \ #tcindex mask 0xf0 shift 4 pass_on then BE & AF classification seems to be fine but

I ''ve been trynig for a long time now to make HTB and GRED to work togethen. The problem beeing that GRED doesn''t use handles (instead it uses DP:1 DP:2 etc) i can not preperly filter traffic to them. Tomas Graf suggested to use the tc_index index of u32 classifier so dear Sant .. i am currently with the following scripts that works! But when i try to add an HTB before the

Hey everyone, For some reason my htb configuration isn''t allowing any class to burst up to its ceiling ever, even when the link is only being utilised by one class that class only ever gets its assigned rate and exactly that assigned rate... The hierarchy I have is 1: at the root with no default, then 1:2 and 1:3 under that, both with assigned rates, then 2: and 3: under those

On Sat, 29 May 2004 12:00:52 -0700 (PDT), <freebsd-security-request@freebsd.org> wrote: Hello ! Today i see in snort logs : [**] [1:528:4] BAD-TRAFFIC loopback traffic [**] [Classification: Potentially Bad Traffic] [Priority: 2] 06/07-09:44:39.044590 127.0.0.1:80 -> 10.6.148.173:1566 TCP TTL:128 TOS:0x0 ID:577 IpLen:20 DgmLen:40 ***A*R** Seq: 0x0 Ack: 0x75830001 Win: 0x0 TcpLen:

We're being ping-flooded by the Nachi worm, which probes subnets for systems to attack by sending 92-byte ping packets. Unfortunately, IPFW doesn't seem to have the ability to filter packets by length. Assuming that I stick with IPFW, what's the best way to stem the tide? --Brett Glass